#include <TsValue.h>

Collaboration diagram for ts::config::Path::Parser:

Public Types
enum	Result { ERROR, TAG, INDEX, EOP }
	Parsing result. More...
typedef Parser	self
	Self reference type.
Public Member Functions
	Parser ()
	Default constructor.
	Parser (ConstBuffer const &text)
	Construct with input.
self &	setInput (ConstBuffer const &text)
	Set the input text.
Rv< Result >	parse (ConstBuffer *cbuff=0)
	Parse the next element in the path.
bool	hasInput () const
	Check if input is available.
Protected Attributes
ConstBuffer	_input
	Current input buffer.
char const *	_c
	Next input character.

Detailed Description

Parser for path text.

This is restartable so a path can be parsed in pieces.

Definition at line 115 of file TsValue.h.

Member Typedef Documentation

typedef Parser ts::config::Path::Parser::self

Self reference type.

Definition at line 117 of file TsValue.h.

Member Enumeration Documentation

enum ts::config::Path::Parser::Result

Parsing result.

Enumerator:

ERROR	Bad input.
TAG	Path tag.
INDEX	Path index.
EOP	End Of Path.

Definition at line 141 of file TsValue.h.

Constructor & Destructor Documentation

ts::config::Path::Parser::Parser ( ) [inline]

Default constructor.

Definition at line 725 of file TsValue.h.

ts::config::Path::Parser::Parser ( ConstBuffer const & text ) [inline]

Construct with input.

This default constructs the Parser then calls setInput with text. It is provided as a convenience as that will be the common use case.

See also:: setInput.

Parameters:

text

Input text.

Definition at line 726 of file TsValue.h.

Member Function Documentation

bool ts::config::Path::Parser::hasInput ( ) const [inline]

Check if input is available.

Definition at line 727 of file TsValue.h.

References _c, _input, ts::ConstBuffer::_ptr, and ts::ConstBuffer::_size.

Referenced by parse().

Rv< Path::Parser::Result > ts::config::Path::Parser::parse ( ConstBuffer * cbuff = 0 )

Parse the next element in the path.

cbuff may be NULL in which case no data about elements is available. In general this should be called until EOP or ERROR is returned, each call returning the next element.

Returns:

A parse Result.

TAG: A tag was found. The start and length are stored in cbuff.
INDEX: An index was found. The value is in cbuff._size.
EOP: No more path elements were found. Do not continue parsing.
ERROR: A syntax error was encountered. See the errata for detail. Do not continue parsing.

Parameters:

[out] cbuff Parsed path element.

Definition at line 227 of file TsValue.cc.

References _c, _input, ts::ConstBuffer::_size, hasInput(), ts::RvBase::isOK(), ts::msg::log(), ts::msg::logf(), ts::ConstBuffer::reset(), ts::ConstBuffer::set(), start, and ts::msg::WARN.